Dr. Hirshfeld-Cytron is board certified in both Obstetrics and Gynecology and Reproductive Endocrinology and Infertility and has been practicing medicine since 2004. She completed her Obstetrics and Gynecology residency at the University of Chicago, and then completed her three-year fellowship in Reproductive Endocrinology and Infertility at Northwestern. Dr. Hirshfeld-Cytron's professional interests include fertility preservation, which involves preserving fertility for women facing diseases of which treatment could impair ovarian function, as well as women choosing to delay fertility for social or personal reasons. Dr. Hirshfeld-Cytron is well-published in the areas of fertility preservation and cost analysis of fertility therapies.